I also have the same boot problems, my lan port comes in and out randomly, one of my fans doesn't run if I restart my pc at any point after the first boot of the day, but I'm only using 1 nvme drive as opposed to his 4. I have a toughpower GF3 1600W PSU instead also....

I've been using 10a for a few days now, and it comes with a noticeable reduction in post time supposedly due to AGESA 1.0.0.6, but still a broken LAN port. Now that the logo on post is high res it looks really small at 4K so I'm going with that being a downgrade. All else, I have not had any crashing...

I've been using F9C for about a week and have not had a single crash yet. My ethernet port still doesn't work but otherwise this seems like a pretty stable release....

Yeah I take back what I said about F8, I'm getting random complete reboot crashes. I got a couple with F8h but with F8 it seems like I am getting several a day....

I updated to F8 and am not seeing any instability issues yet compared to F8h, and post time seems to be around 5 seconds now with 4x16 sticks of ram in expo, which is probably as good as it's going to get.
Several problems still persist that have been there from the beginning though. One of...

Looks like F8 proper was released on the 19th. Anyone try it out yet?...

Updated to F8h today and so far no game crashing or gpu performance throttling. Post time has gone from around 45 seconds to about 10 also so that is a win in my book!...

Looks like they replaced F8g with F8h a couple days later. Any luck with that?...

If you change the version in the URL it will download the version you want. So just copy the link url, paste in the search bar, and change F8g to F8b or whichever you want and it will download it....

F8c causes all games to crash on my system after a few minutes with GPU related errors. Post time was much faster though.
Rolled back to F7 because I couldn't figure out how to get F8b and took a severe gpu performance hit. Like 20%, super weird.
Figured out how to get back to F8b and...